地球以外的

1.344-359) describes a micrometer in which a negative lens is introduced between the eye-piece and the objectglass.

双重图象测微表与分开透镜。种测微表被发明了除heliometer 以外为测量由重象。Ramsdens 屈光测微表包括个分开透镜被安置在台地球望远镜架设眼睛管在透镜共轭焦点。